diff --git a/packages/opencode/src/tool/batch.ts b/packages/opencode/src/tool/batch.ts
index 8bffbd54a28..ba34eb48f5c 100644
--- a/packages/opencode/src/tool/batch.ts
+++ b/packages/opencode/src/tool/batch.ts
@@ -33,8 +33,8 @@ export const BatchTool = Tool.define("batch", async () => {
       const { Session } = await import("../session")
       const { Identifier } = await import("../id/id")
 
-      const toolCalls = params.tool_calls.slice(0, 10)
-      const discardedCalls = params.tool_calls.slice(10)
+      const toolCalls = params.tool_calls.slice(0, 25)
+      const discardedCalls = params.tool_calls.slice(25)
 
       const { ToolRegistry } = await import("./registry")
       const availableTools = await ToolRegistry.tools({ modelID: "", providerID: "" })
@@ -139,14 +139,14 @@ export const BatchTool = Tool.define("batch", async () => {
           state: {
             status: "error",
             input: call.parameters,
-            error: "Maximum of 10 tools allowed in batch",
+            error: "Maximum of 25 tools allowed in batch",
             time: { start: now, end: now },
           },
         })
         results.push({
           success: false as const,
           tool: call.tool,
-          error: new Error("Maximum of 10 tools allowed in batch"),
+          error: new Error("Maximum of 25 tools allowed in batch"),
         })
       }
 
diff --git a/packages/opencode/src/tool/batch.txt b/packages/opencode/src/tool/batch.txt
index b1b6a6010f5..565eb4dd433 100644
--- a/packages/opencode/src/tool/batch.txt
+++ b/packages/opencode/src/tool/batch.txt
@@ -6,7 +6,7 @@ Payload Format (JSON array):
 [{"tool": "read", "parameters": {"filePath": "src/index.ts", "limit": 350}},{"tool": "grep", "parameters": {"pattern": "Session\\.updatePart", "include": "src/**/*.ts"}},{"tool": "bash", "parameters": {"command": "git status", "description": "Shows working tree status"}}]
 
 Notes:
-- 1–10 tool calls per batch
+- 1–20 tool calls per batch
 - All calls start in parallel; ordering NOT guaranteed
 - Partial failures do not stop other tool calls
 - Do NOT use the batch tool within another batch tool.